Analyze the following tweet to determine the level of anger expressed. The levels are: 0: no anger can be inferred, 1: low amount of anger can be inferred, 2: moderate amount of anger can be inferred, 3: high amount of anger can be inferred.
Tweet: Summer Sale! BOGO 50% OFF everything in our retail showroom! Valid thru 7/15 mix &amp; match...equal or lesser value #BOGO #ragegrafix