Googled this number and found several complaints about this caller:

*asks to speak to "shop manager" so as to obtain info you won't give [him]
*does not identify what agency [he] calls from
*becomes rude & sarcastic when [he] doesn't get his way (just like a kid, eh?)
*may ask for a "fleet manager"
*still refuses to identify [his] agency
*continues childish rude behaviour
*may claim to be 'selling light bulbs'
*becomes angry & belligerent if [his] offer is refused
*THREATENED BODILY HARM TO THE EMPLOYEE who answered [his] call, to which a Police Report was filed that same day.

Honestly, isn't there enough Businesse to harass there in Maryland without having to call Ohio Businesses, too?
Get a life, Bucko. And grow up already.