You're not taking into account the environmental impact studies on the Amazon awnings and their impact on runoff, the potentially cancer causing materials used to manufacture the Amazon awnings, the effects of the cooling of the areas under the awnings on insects, the comparative safety of the Amazon awning with other alternatives  and of course Amazon's effect on the local economy.  
Also, they would have to be erected by someone making prevailing wage who is other than a white male and most importantly a union employee.  The erection of the Amazon would have to be approved and overseen by city, county, state and federal planners and inspectors because Amazon is not some council members acquaintance.  Jeff Merkley and Ron Wyden (Oregon's Senator from New York) would have to be able to take credit for the idea of using Amazon as a supplier while Kate Brown and Lucy Goosey share the ribbon cutting with a transgendered person.  Then the travellers will have a covered place to poop.