HELP! I might be in trouble for a crime I didn't do!?

Ok, today my friend was at my house and this morning he went streaking, and somebody pulled over to talk to him. Someone called the cops on him and he went into my driveway and now cops are driving around the neighborhood and I think they will think its me cause he went in my driveway! my friend has the same long black hair as me! He left my house so now its just me!!! Can I get in trouble for indecent exposure when it wasnt even me?! No body has a picture of him, probably jus witness reports. Can they prove it without evidence? Or is it based on hear-say! Cause I did nothing wrong! WHAT IF THEY MY NEIGHBORHOOD THINKS ITS ME!!!!!!! PLEASE HELPP!!!!!!!!!!