There will be thousands of drivers on the road this holiday season and undoubtedly some will be in a hurry. Others will just be trying to get to their destination safely.
"We all need to share the road and we need to respect each other's space," said San Antonio police Officer Marcus Trujillo.
One thing that frustrates many drivers are people in the passing lane on multilane highways not actually passing.
"The left lane is designated for passing only when you have three or more travel lanes going in the same direction on the highway," Trujillo said.
Drivers will get in the far left lane and stay there.
Just ask Angel Morales. He's one of them.
"A lot of people use it to pass but I prefer to stay in that lane all the time," Morales said.
That is fine -- as long as he is passing someone, Trujillo said.
"You pass a vehicle and then you're are supposed to move over to the right and leave that lane clear," Trujillo said.
No matter what drivers may think about the far left lane, it is not a fast lane.
"It is not a fast lane. It is not a get-in-that-lane-and-stay-in-(there) lane," Trujillo said.
Drivers could pay a hefty price for just cruising in the left lane.
"It is a ticket-able offense if you are driving in the left lane and you are not passing someone," Trujillo said.
There are other rules about the passing lane.
For instance, if you come up behind someone, you cannot flash your high beams at them to get them to move over, nor can you honk your horn.
There is a good reason for that, Trujillo said: Those two moves could lead to something else.
"Venturing off into dangerous driving habits (or) road-rage issues," Trujillo said.
There are some signs posted on the highways warning drivers that the left lane is for passing only.
For a list of recent stories David Sears has done, click here.