A man who cut in front of a line of motorists waiting for discounted gas Thursday was arrested after police found suspected marijuana and painkillers in his car.

Police said the 24-year-old wasn't even interested in the gas, which was being sold at 50 cents less than the normal $2.85 per gallon rate. Capt. Richard Maierle said the man, who smelled of marijuana, wanted a snack.

The sale at a gas station in suburban Detroit was sponsored by Macomb County prosecutors using money from a settlement with an unrelated station caught shortchanging customers.

"Not only are we giving motorists cheap gas, we are also taking criminals off the street," Prosecutor Eric Smith told The Detroit News.

The man barged to the front of the line about 9 a.m., an hour before the cheap gas went on sale, the newspaper said. The man was arrested and was expected to face drug possession charges Friday.